bronchial challenge test

(redirected from methacholine provocation test)

bronchial

 [brong´ke-al]
pertaining to or affecting one or more bronchi.
bronchial challenge test a pulmonary function test in which an aerosol such as methacholine, histamine, or an allergen is administered to provoke bronchospasm; used in diagnosis of asthma.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

bronchial challenge test

Any of a group of functional tests for assessing asthma, in which a nebulised agent—e.g., histamine, methacholine—is sprayed on the bronchial mucosa that evokes bronchoconstriction in asthmatics, which is detected by spirometry; BCT is used to establish a baseline pulmonary functional status.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Forced expiratory volume in 1 sec (FE[V.sub.1]) and PEF were measured with a portable combined spirometer every 15 min during the exposure to formaldehyde or air-only in the chamber and every hour until the methacholine provocation test, which was performed 8 hr after the end of the allergen bronchial challenge.